The function of any catalytic converter is to reduce harmful emissions generated by a properly-tuned engine. Learn more here.
A catalytic converter is a vital part of a vehicle emissions control system. It is designed to convert harmful engine emissions to CO2 and water. Learn more about how a catalytic converter works as well as the anatomy of a typical converter.
There are three types of catalytic converters: two-way converters, three-way plus air catalytic converters, and three-way converters. For the most part, each of these different converters came about because of emission regulations. Here is a summary of the catalytic converter evolution.
A catalytic converter has no moving parts. A converter cannot "wear out", but can become inert because of the accumulation of deposits, or through the physical damage caused by impact or overheating (misfire or fuel control faults).